Anyone with an email address has probably been contacted by a supposed Nigerian prince at some point. The spam messages offering riches from air in exchange for your bank details were once so widespread that they became a running joke.

Fortunately, most people probably now know that these generous offers don't come from genuine royalty. But are you as quick when it comes to identifying a fake physical product? A real Nigerian prince is putting people to the test in a campaign for skincare brand Vaseline that's gone viral online.

Chris Okagbue is a Nigerian actor and model, but he's also a member of the Onitsha royal family of Anambra State.…